Military power of NATO & Japan

The North Atlantic Treaty Organization (North Atlantic Alliance) is an intergovernmental military alliance which was signed in Washington on 4 April 1949. NATO is a system of collective security: its independent member states agree to defend each other against attacks by others countries. NATO's main headquarters are located in Brussels. The following twelve states signed the treaty and became the founding members: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, United Kingdom and United States. The following states joined the treaty after 1949: Greece, Germany, Turkey and Spain. Members who joined after the dissolution of the Soviet Union: Czech Republic, Hungary, Poland, Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, Slovenia, Albania, Croatia, Montenegro and North Macedonia.

Before and during the 2022 Russian invasion of Ukraine, several NATO countries sent army to reinforce the alliance's eastern flank. Alliance had deployed 40,000 troops along its 2,500 kilometres long Eastern flank to deter possible Russian aggression. On 5 July the North Atlantic Alliance members signed off on the accession protocols for Sweden and Finland and formally approved the decisions of the NATO summit.

Finland joined the alliance on 4 April 2023.

Japan is a country located in Eastern Asia with an area of 377,944 km² (land boundries: 0 km and costline 29,751 km). The capital of Japan is Tokyo. The number of inhabitants is 125,360,000.

The current Self Defense Force was founded in 1954. Japan has Major Non-NATO Ally (MNNA) status with the USA. Approximately 55,000 US troops and other military assets, including aircraft and naval ships, were stationed in Japan and had exclusive use of more than 80 bases and facilities. In exchange for their use, the US guarantees Japan’s security. The JSDF is equipped with a mix of imported and domestically-produced equipment. The majority of its weapons imports are from the US and some domestically-produced weapons are US-origin and manufactured under license.